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- 10.Qd2 a6 — Main Line, 9.cxd5 Nbd7 — Orthodox, E60-E99 1. d4 Nf6 2. c4 g6 King's Indian defence, E89 - 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 e5 7. Nge2 c6 8. d5 cxd5 - King's Indian Defense: Sämisch Variation, Closed Variation, Main Line, SÉRIE E
Moskou ch-URS 1973 – Round 1 – Petrosian, Tigran V – 1/2-1/2 – Geller, Efim P – G11

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- 5...Ne4 6.cxd5 Nxg5, 7.Nxg5 c6, D80-D99 Gruenfeld defence1. d4 Nf6 2. c4 g6 3. Nc3 d5, D91 - 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Bg5 - Grünfeld Defense: Three Knights Variation, Petrosian System, SÉRIE D
Moskou ch-URS 1973 – Round 1 – Petrosian, Tigran V – 1/2-1/2 – Korchnoi, Viktor – G29

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- E20-E59 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 Nimzo-Indian defence, E54 - 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O dxc4 8. Bxc4 - Nimzo-Indian Defense: Normal Variation, Gligoric System, Exchange Variation, SÉRIE E
Moskou ch-URS 1973 – Round 1 – Petrosian, Tigran V – 1/2-1/2 – Kuzmin, Gennadiy – G13

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- 1. c4 e6 2. g3 d5 3. Bg2 ..., 4...dxc4 - Neo-Catalan Accepted, A10-A39 English Opening, A13 - 1. c4 e6 - English Opening: Agincourt Defense, A13 - 1. c4 e6 2. Nf3 d5 - English Opening: Agincourt Defense, A13 - 1. c4 e6 2. Nf3 d5 3. g3 Nf6 - English Opening: Neo-Catalan, A13 - 1. Nf3 d5 2. c4 e6 3. g3 - English Opening: Agincourt Defense, A13 - 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 - English Opening: Neo-Catalan, SÉRIE A
Moskou ch-URS 1973 – Round 1 – Polugaevsky, Lev – 1/2-1/2 – Spassky, Boris Vasily – G7

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- 7...b5 8.Bd3 b4 — Lundin, 9.Ne4 Nxe4, D43-D49 Queen's Gambit Declined semi-Slav1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 c6, D47 - 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 - Semi-Slav Defense: Semi-Meran Variation, SÉRIE D
Moskou ch-URS 1973 – Round 1 – Polugaevsky, Lev – 1/2-1/2 – Sveshnikov, Evgeny – G1

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